Cenelec Atex (Kema) Certification - YOKOGAWA Dpharp vigilantplant EJA110A User Manual

• In case of ANSI 1/2 NPT plug, ANSI hexagonal
wrench should be applied to screw in.
Note 3. Operation
• WARNING:
AFTER DE-ENERGIZING, DELAY 10 MINUTES
BEFORE OPENING.
• WARNING:
WHEN AMBIENT TEMPERATURE
USE THE HEAT-RESISTING CABLES
• Take care not to generate mechanical sparking
when accessing to the instrument and peripheral
devices in a hazardous location.
Note 4. Maintenance and Repair
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void IECEx Certification.
2.9.4 CENELEC ATEX (KEMA)
Certification
(1) Technical Data
a. CENELEC ATEX (KEMA) Intrinsically Safe
Type
Caution for CENELEC ATEX (KEMA) Intrinsi-
cally safe type.
Note 1. Model EJA Series differential, gauge, and
absolute pressure transmitters with
optional code /KS2 for potentially explo-
sive atmospheres:
• No. KEMA 02ATEX1030 X
• Applicable Standard: EN50014:1997,
EN50020:1994, EN50284:1999
• Type of Protection and Marking code:
EEx ia IIC T4
• Temperature Class: T4
• Enclosure: IP67
• Process Temperature: 120°C max.
• Ambient Temperature: –40 to 60°C
Note 2. Electrical Data
• In type of explosion protection intrinsic safety EEx
ia IIC only for connection to a certified intrinsically
safe circuit with following maximum values:
Ui = 30 V
Ii = 165 mA
Pi = 0.9 W
Effective internal capacitance; Ci = 22.5 nF
Effective internal inductance; Li = 730 μH
Note 3. Installation
• All wiring shall comply with local installation
requirements. (Refer to the installation diagram)
Note 4. Maintenance and Repair
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void KEMA Intrinsically safe Certification.
Note 5. Special Conditions for Safe Use
• In the case where the enclosure of the Pressure
70°C, Transmitter is made of aluminium, if it is mounted
90°C. in an area where the use of category 1 G apparatus
is required, it must be installed such, that, even in
the event of rare incidents, ignition sources due to
impact and friction sparks are excluded.
Hazardous Location
Transmitter
*1: In any safety barriers used the output current must be limited
b. CENELEC ATEX (KEMA) Flameproof Type
Caution for CENELEC ATEX (KEMA) flameproof
type.
Note 1. Model EJA Series differential, gauge, and
• No. KEMA 02ATEX2148
• Applicable Standard: EN50014:1997,
EN50018:2000
• Type of Protection and Marking Code: EEx d IIC
T6···T4
• Temperature Class: T6, T5, and T4
• Enclosure: IP67
• Maximum Process Temperature:
85°C (T6), 100°C (T5), and 120°C (T4)
• Ambient Temperature: T4 and T6; –40 to 75°C,
T5; –40 to 80°C
Note 2. Electrical Data
• Supply voltage: 42 V dc max.
• Output signal: 4 to 20 mA
Note 3. Installation
• All wiring shall comply with local installation
requirement.
• The cable entry devices shall be of a certified
flameproof type, suitable for the conditions of use.
2-8
2. HANDLING CAUTIONS
[Installation Diagram]
+
Supply
–
by a resistor "R" such that Imaxout-Uz/R.
absolute pressure transmitters with
optional code /KF2 for potentially explo-
sive atmospheres:
Nonhazardous Location
+
Safety Barrier *1
–
F0208.EPS
IM 01C21B01-01E